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. 2020 Nov 9;70(3):522–530. doi: 10.1136/gutjnl-2020-322753

Table 1.

Distribution of phenotype variables at SHIP-2

Continuous variables Mean (±SD) Median (first–third quartile) Missing data (%)
Age (years) 55.8 (±12.3) 56.0 (46.0–65.0) 0.0
Alcohol (g/day) 9.1 (±12.7) 4.3 (1.2–11.5) 2.2
Balanced diet (Food frequency score) 14.5 (±3.4) 15.0 (12.0–17.0) 0.0
BMI (kg/m²) 28.0 (±4.8) 27.4 (24.6–30.7) 0.1
Carotid intima–media thickness (mm) 0.6 (±0.1) 0.6 (0.5–0.7) 1.2
Exocrine pancreatic function (pancreatic elastase, µg/g stool) 460.3 (±166.8) 481.0 (346.0–585.0) 0.5
Glycaemic control
(HbA1c, %)
5.4 (±0.8) 5.3 (5.0–5.7) 0.1
Cardiac function (NT-proBNP, pg/mL) 112.6 (±174.4) 66.5 (36.0–120.8) 3.1
Household net income (class) 4.9 (±2.0) 5.0 (4.0–6.0) 1.5
LDL/HDL ratio 2.5 (±0.9) 2.3 (1.8–3.1) 0.2
No of household members 2.2 (±0.9) 2.0 (2.0–3.0) 0.0
Renal function (eGFR, mL/min) 87.6 (±17.2) 88.5 (76.3–99.9) 0.1
Smoking (cigarettes/day) 2.1 (±5.5) 0.0 (0.0–0.0) 0.0
Species richness (N0) 248.3 (±63.4) 245.0 (205.0–287.0) 0.0
Thyroid function (TSH, mU/L) 1.2 (±1.0) 1.0 (0.7–1.5) 0.3
Binary variables Positive reports (%) Missing data (%)
Arterial hypertension 48.8 0.1
Diabetes mellitus 10.6 0.1
Dyslipidaemia 34.8 0.2
Fatty liver disease 16.8 0.8
Female sex 53.9 0.0
Hypothyroidism 12.7 0.3
Manifest atherosclerotic disease 2.3 0.0
Proton pump inhibitor usage 10.5 0.0

All variables are in alphabetical order. All values are rounded to one decimal place.

BMI, body mass index; eGFR, estimated glomerular filtration rate; HbA1c, glycated haemoglobin; HDL, high-density lipoprotein; LDL, low-density lipoprotein; NT-proBNP, N-terminal prohormone of brain natriuretic peptide; SHIP, Study of Health in Pomerania; TSH, thyroid-stimulating hormone.